met·a·ma·te·ri·al /ˈmetəməˌtɪəriəl $ -ˌtɪr-/ BrE AmE noun [countable] technical
an artificial material that has qualities that natural materials do not have
met·a·ma·te·ri·al /ˈmetəməˌtɪəriəl $ -ˌtɪr-/ BrE AmE noun [countable] technical
an artificial material that has qualities that natural materials do not have
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012